1 The primary cause of COPD is tobacco smoke (through tobacco use or second-hand smoke).  The disease now affects men and women almost equally, due in part to increased tobacco use among women in high-income countries.
Swarming is the process by which a new honey bee colony is formed when the queen bee leaves the colony with a large group of worker bees. In the prime swarm, about 60% of the worker bees leave the original hive location with the old queen. This swarm can contain thousands to tens of thousands of bees.
It is their natural means of reproduction. In preparation of swarming, the bees do many things differently in the hive. Most noticeably to beekeepers, the bees will prepare a swarm cell (or queen cell) at the bottom of a frame to create a new queen. The swarm will leave with the residing queen before the new queen is born.